| BOOL AngleArc(hdc, X, Y, nRadius, eStartAngle, eSweepAngle) | |||||
| HDC hdc; | /* handle of device context | */ | |||
| int X; | /* x-coordinate of circle's center | */ | |||
| int Y; | /* y-coordinate of circle's center | */ | |||
| DWORD nRadius; | /* circle's radius | */ | |||
| FLOAT eStartAngle; | /* arc's start angle | */ | |||
| FLOAT eSweepAngle; | /* arc's sweep angle | */ | |||
The AngleArc function draws a line segment and an arc. The line segment is drawn from the current position to the beginning of the arc. The arc is drawn along the perimeter of a circle with the given radius and center. The length of the arc is defined by the given start and sweep angle.
hdc
Identifies a device context.
X
Specifies the logical x-coordinate of the center of the circle.
Y
Specifies the logical y-coordinate of the center of the circle.
nRadius
Specifies the radius of the circle in logical units. (This value must be positive.)
eStartAngle
Specifies the start angle in degrees relative to the x-axis.
eSweepAngle
Specifies the sweep angle in degrees relative to the starting angle.
The return value is TRUE if the arc was drawn. Otherwise, it is FALSE.
The AngleArc moves the current position to the end point of the arc.
The arc drawn by this function may appear to be elliptical, depending on the world- and page- and device-transformations.
Prior to drawing the arc, this function draws the line segment from the current position to the beginning of the arc.
The arc is then drawn by constructing an imaginary circle around the specified center point with the specified radius. The starting point of the arc is determined by measuring counterclockwise from the x-axis of the circle by the number of degrees in the start angle. The end point is similarly located by measuring from the start point by the number of degrees in the sweep angle.
If the sweep angle is greater than 360 degrees the arc will be swept multiple times.
This function draws lines with the current pen. The figure is not filled.
Arc, ArcTo, MoveToEx